So I was at an Empowerment last monday in Manchester. My mother(in denmark) said that she woke up in middle of the night because light was shining at her through the window, and when she looked out she saw a rainbow or rainbow light at night.

So, I actually read something from Lama Ýeshe, where he was talking about Phowa and death. He said that seeing a rainbow at night is a sign that you will die within 6 months or something like that.